How to measure a IGBT?

( 1 ) Measure the three foot of IGBT with multimeter RX10kΩ without damping tube, one of which is infinite with the other two feet, this foot is G, and the other two feet are C and E.

In the test, there are two feet with a certain resistance, a small resistance, such as NPN type pipe, the black pen is connected to E, the red pen is connected to C; the PNP type is the opposite.

( 2 ) Measuring three electrodes with RX 10Ω ~ RX 100Ω for measuring the damping pipe. The secondary resistance is several hundred ohms, and the other one is several thousand ohms. The two feet are C and E, and the resistance is small, and the black pen is the E-pole,red stylus is the C pole, the other foot is the B pole ( G pole ).

( 3 ) When measuring and measuring IGBT module, the resistance between C-E, C-B and B-E of IGBT should be measured by using the RX 10Ω of the multimeter, which should be in accordance with the resistance of the damping pipe. If the IGBT component fails, there may be a short circuit between the collector and emitter, collector and gate. ( note : when IGBT works, the voltage between the gate and emitter is about 9V, and the emitter is the reference. If you use the road measurement method, you should first disconnect the corresponding pin, to prevent the circuit due to the impact of internal resistance caused by false judgment.

If you want to know more, our website has product specifications for the IGBTs, you can go to Allicdata Electronics Limited to get more information.

IGBT : HGTD1N120BNS9A

IGBT module : IXGN320N60A3